Not sure if the italicized was written by you or if you are quoting someone, but that is the argument from me. Baseball needs offense, fewer strikeouts. If video helps, use it. Christian Yelich probably faces more 98 mph fastballs in a weekend series than Babe Ruth did in his career. I am sure that pitchers with 32 complete games in a season weren't painting the corners at 100 in the ninth inning. And I am not sure that video would have helped you with a spitball anyway. Bob Feller is still talked about because he was such an anomaly as a hard thrower back then, and for all we know he was throwing low 90s. From an ESPN article:

"Feller's numbers from that season are mind-boggling from a modern perspective. He went 26-15 with a 2.18 ERA and 348 strikeouts, but that's not even the fun stuff. He started 42 games and completed 36 of them, throwing 10 shutouts. He pitched 371.1 innings. He even saved four games for good measure. Using a basic pitch count estimator, we guess that Feller threw 5,848 pitches that year. That's 2,118 more than the 3,730 that MLB leader David Price threw in 2014."

You will never, ever be able to convince me that he was routinely throwing 90+. Use the video.