In my opinion they have muted interest in PR for two reasons, the leadership of the company (minor), and the type of company it is/where it sits in its development timeline (major).
I actually think SCY does a good job of communicating relative to its peers. This is the part of the equation I think you are missing. Mining is a very risky business where the majority of several thousand junior explorers will fail at their goal of finding an economic mineral deposit. Then on top of that many of the "lottery winners" will still fail and dilute to oblivion or go bankrupt because, despite winning the lottery, they are still far from mining and have many hoops to jump through. On average, from the first drill bit breaking the earth all the way to the first product, will now take a normal company 10-20 years to begin mining. With this in mind a 3 month gap with no visible PR is completely expected, especially during this period. The 2 things that will boost SP at the moment is an off-take and financing - both are negotiated privately until complete, and then announced. Work doesn't stop because the PRs do. On my other big holding, Mexus, there was ongoing joint venture discussions for several YEARS yet nothing came of them...until they actually signed them. To an outsider it looked like years of nothing followed by a sudden something, but the reality on the ground was completely different. Shareholders were irate at the lack of news, demanded updates, and so during that lull the company released really wussy news like "we are in discussions with two mining companies..." or w/e I personally would rather hear nothing than read a 0 calorie PR.
So when people are wondering about more information and updates they unrealistically demand that a company like SCY (that is further into this process than any other company on earth and over a decade ahead of schedule) to "hurry up" or share information they don't have, or worse- pump the stock with meaningless PRs. Mining is not a "hurry up" industry and Putnam is not a pumper nor does SCY have the resources for good PR at this early stage of development when conserving cash and raising money is of absolute paramount importance. This is just one of the dead periods in a natural mine development life cycle. Some speculators trade in and out if they know there won't be drilling and development PRs for a while. "Reassuring investors" is very low on the priority list at the moment and is arguably a waste of time and money since it would only affect the small holders and what many would call "weak hands". The big shareholders are aware this is a very unique mining play with long term implications. Anyone not looking 5-10 years in the future is very myopic in my opinion. In the next 5 years there is going to lots of SCY news and more exciting trading as it gets into more lucrative stages of its development.
These patterns are very common: https://www.google.ca/search?q=junior+lifecycle&client=firefox-b-ab&prmd=ivns&tbm=isch&tbo=u&source=univ&sa=X&ved=0ahUKEwimkeTu0NjPAhVLmR4KHT88AK4QsAQIGw
I feel like every mining stock should come with the disclaimer "This is going to take 20 years. It is a long road but we will try and do it in 5-10. If we succeed without diluting you to an extreme level you will probably make a lot of money and if we don't your money will join the ranks of the undead juniors."