I don't think the premier league has become more competitive as Manchester city dominance has reduced but I think Manchester city are in a bad form because some of their key players aren't available for them to be used and Pep Guadiola doesn't have other better options to use and this is making him to lose games that were previously easy for him to win. We have more quality managers in the premier league now but let us wait for when Manchester city are back in form as their injured players return before we can see how the league is going to be before we can make conclusions. When Manchester city are in form, I don't think any manager can defeat them.
Premier League is competitive as we have in last few seasons but in this season we have more injuries and off the field issues which are creating problems for the clubs even now many big clubs are suffering due to these injuries which are increasing and problems are also increasing for the coaches and clubs Pepe Guardiola is having last season here at the Manchester City which was looking going to end with good mark but recent three defeats give them huge setback even their chances are still high for having wins in coming matches and stay at the top level for Champions League Premier League.
You don't say that EPL is not competitive because City is in a poor form and finds it difficult to win their matches. This is the reason why you will say that's competitive, because no club is supposed to win the league four consecutive times when there are other strong clubs. Maybe, Manchester City reign is coming to an end soon and that is why we are seeing their performance declining. However, I believe that the club is passing through hard times due to injuries, and will pick form back, but it might be too late by then.