We're regularly told on here - by people who obviously (think they) know - that Canon is an ultra-conservative company.
Ultra-conservative companies do not, by definition, arbitrarily drop features: nothing happens without there being a very good reason for it.
One other thing we know about Canon is that its diligence in market research is peerless: nothing happens at Canon unless it has been researched, analysed, evaluated and market-tested.
That doesn't mean they'll always make decisions that the average photographer can make immediate sense of, but it is axiomatic that if Canon has dropped the hot-shoe from this body, it has done so because it is the right decision in terms of Canon's wider strategy for the camera; and it will not have been made without there being solid numbers to back the decision up.
Alternative explanations - that Canon has done it for shits and giggles; or for spite - are risible.