There is to a degree, if you bowl three-four balls in the same spot and do it again the fifth ball, then yes they go for it. I've found throwing in a few bouncers, cutters, negates that (This is in career mode, can't vouch for other modes.) There are run rate sliders that help overall. I'll just say it now, Cricket 19 isn't a white unicorn. There are fundamental flaws in AI, like bowling middle-leg stump lines for left handers consistently, averaging three run outs a game, sometimes innings, players don't dive for catches that drop short, keepers teleporting and bowlers too for catches sometimes etc. You will find frustration with this game, but there is also great enjoyment there as well. TL DR - See cricket 19 as a moderate refinement of Ashes Cricket.
Its quite obvious, to me anyway, that the AI code is hard baked into the game engine which means fixing these issues would be essentially taking the whole building down to replace a window rather than just replace the window. Hopefully this changes for the next game or one after.
I'm just saying this because I'm getting the feeling you're caught between two fires for getting it. Personally, like I said earlier, if you're happy with Ashes Cricket, then I'd stick with it until the next game, probably late this year or wait/find cricket 19 on sale.