It is, but even Kinsler thinks what the Sox did was minimal at best and doesn't think the league will find much. It is possible as second offenders the Sox will get the hammer, but also possible that players like Kinsler (now retired and with nothing to lose) will make the case that what the Red Sox did was business as usual. All teams do have video feeds and nearly every player uses them for legal reasons, but if he is right and players catch the signs as have a "if I can figure it out, great. If not, no biggie" attitude about it, that might be illegal, but it is not premeditated like an actual Codebreaker algorithm employed by the Astros.
And when does the Yankee investigation start? In no way do I believe that every single scrub the Yankees grab has a miraculous breakout year based on legitimate talent alone. "Oh, it's just good scouting. The Yankees liked his 'exit velocity' " or whatever. Yeah, because other teams don't look at exit velocity...