The men's doubles was already trimmed to 3 sets from 5, so that is now the case across the board at all majors (Wimbledon was the last hold out). Sorry but the trend is not going in the direction you favour, it's going the opposite way. 5 sets for men's singles is a big tradition, so I don't think it's going away any time soon, but I do think it will eventually be that all matches are 3 sets.
For me the interest isn't based on the number of sets, but the quality and style of play. I've seen very boring 3 set and 5 set matches, and very thrilling 3 set and 5 set matches. For me the number of sets is not a key factor.
My username is archer because I was a competitive archer for a very long time. My sport went through a major upheaval in the 90's that dramatically shortened the event and how the winner was chosen (at the behest of the IOC). It went from archers shooting for 4 days (288 arrows total), and whoever had the highest cumulative score won, to having a ranking round of 72 arrows, then very short head to head matches of 18 and 12 arrows each - single round elimination. It changed the flavour of the competition in a major way - in the old format having one bad arrow out of 288 was something you could live with, and not have a big impact. In the new format, having one bad shot in a 18 or 12 arrow match means you lose, period. It went from a rather leisurely drawn out event, to short high pressure matches.
People whined and complained that the matches were too short, but those who understood what they had to do to win, just did that and moved on. I competed under both systems and won and lost under both systems. A good player will adapt to whatever the changes are that is made, rather than pulling a Jamie Murray and whine that if it was 5 sets they would have come back...