There are a lot of pithy things I could say to that
I was going to dig into those pithy things but decided against it because I actually agree with you and based on Dr. Liau's comments in the 5 years since that interview I thing she would too; multiple times she has said something to the effect of "GBM patients need more options, not fewer." Hopefully DCVax-L will soon be approved in UK and other places soon thereafter and patients can choose.
Also, FWIW my answer to a couple of your critic's question regarding MHRA approval is that NICE would never reimburse for a 20K device that more than half of those using the treatment fail to wear the device long enough to earn the effect.