I don't think our home support is any worse than the home support of the vast majority of other PL clubs. I've been to a few different grounds now. If the home team plays well, their fans will (perhaps) do well. If the home team doesn't play well, the support will also be poor. It's the same everywhere. I actually think we are better than a lot of other home supporters. At some grounds, home fans will hardly ever get a song going at all.
This, let's not even talk about the grounds where the supporters don't sing, they boo or hiss ... wtf?
Re the at home stuff? since when is this new? Spurs has struggled both under HR and AVB against sides that sit back to defend. Guess what? most sides do, difference is, as we get better, more sides do it, and we don't have years of experience trying to counter it. The only manager for me who has managed in the PL and consistently put away the lower teams year after year was SAF, everyone else usually struggles and you get a lot of what you saw against Hull, lots of possession, lots of half chances, the eventually something happens (penalty, deflected shot, etc.) and opposition teams or fans say "jammy basterds"