Given the huge and ever-increasing evidence, it's impossible not to agree with all of that. There are 4 main issues that I understand to be legally dubious.
1) Polyphony have the confidence in the readiness of their product to allow everyone to try a demo on the 9th. Personally I can't wait to try it. It's obvious that Bandai Namco set a release date to beat GT Sport, regardless if this release date was realistic or not and whether the product was ready or not. I blame the publishers though, not SMS. The time constraint was too restrictive for the game ever to be ready and the feeling I get from various snippets from WMD, is that this release date not open to negotiation.
2) I was roped into it by mates too (having not experienced the PCARS 1 debacle because I only bought that about 6 months ago). Given the small issues we had running manual online leagues with PCARS 1 we were all extremely excited by the online championship feature but despite all the promises, announcements and hype from the devs and reviewers, it was not present on release and as far as I can see, not a word has been mentioned since.
3) WMD also admitted they didn't test it before release on the official forum and due to the uproar that created, they deleted the thread and then banned me for starting it and stating sale of goods act.
4) Given all the bugs, many of which players noticed the very first time they came to do something (like for me, simply saving a setup and getting the FFB to work), it's clearly a pre-release beta that has been fraudulently sold as a full release. It's fine to get people to pay for an early access game if it is stated as such but this was not done - as per adherence to the sale of goods act, you can sell something with defects as long as the consumer is made aware of them before sale.
I fully believe SMS will fix all the issues, but I aso fully believe that the game will only be fully functional well after GT Sport is released...