I wouldn't say that in and of itself means the league is poor, 20 equally brilliant teams would still leave loads of teams in with a chance of relegation. Its the fact that of that 10 teams, most are completely god awful this season. Stoke are the highest of them, have been fairly comfortable for years, went a man up, and couldn't remotely put up a fight, they were just horrendous, they are always horrendous away from home(and not much better at home). Its the fact that pretty much all of those 10 deserve to be relegated on this years form, they've all been SO bad so often its laughable.
You can have a team lose and a team win, and both teams play great, that has happened so rarely this year across the entire league. Chelsea, Utd, Arsenal, Spurs, City have been frequently awful yet still won games playing that bad, sometimes luck, spirit, winning mentality, sometimes because the other team is even more god awful.
Both teams were just cack tonight.