One thing is to say 'I don't like the approach they had in recent years/I prefer the approach they had in the past'. This is to give their opinion.
To say things like 'Konami doesn't really "get" gaming now' or that 'they had no clue' or 'don't get gaming' is a different thing. It's to assume that their own personal opinion is the only valid one, that gaming is the only type of games they like and that if a company doesn't do things the way they like 'they have no clue'. Not only being wrong ignoring that mobile is the biggest and fastest growing market and that maybe they got no choice due to previous failures with several previous AAA/AA.
Did you read my edit? The decline of SH is not my opinion. That is what happened. The decisions made by Konami caused that decline. That is easily verified by how the games performed, reviewed, and were received by fans. Again, you and I are speaking at cross-purposes and going nowhere.