Yeah, you are right. I have a ton of matches on tape from the 80s/90s, they would constantly switch courts & often go to a close 5 setter in lieu of matches involving top Americans back then.
Tennis declined a lot in popularity by the late 90s, so program directors made some unusual decisions regarding their choice of matches.
Its funny, I read an interview with the ESPN Director of Programming in tennisweek a few years ago. He said he got the job around 2002. That's precisely when tennis on espn started going down the dumper! I don't kow if he's still there, but whoever is, is following in his footsteps. I recall him providing reasons why they stuck with tape-delay instead of live broadcasts. they made no sense.
Its funny, tennis gets poor ratings regardless, I'm surprised they are so adamant in sticking to their tape delay format.
You never saw tape delay on espn's broadcast of the french open in the 80s. they had no problem showing a ton of lendl, becker, edberg, wilander, regardless of nationality.
I guess tennis such a niche sport now, they aren't interested in growing the game really, just in filling a timeslot as easily as possible.