Text-to-speech player messages - Super Mario Maker 2

In Super Mario Maker 2, there's an option you can enable that turns on text-to-speech. With it on, whenever a player sends a message by pressing -, you'll be able to hear a little text-to-speech voice say the message, saving you the trouble of darting your eyes to the corner of the screen.
Many people don't know of this option, and some of the readouts are pretty goofy (my favorite is how it slurs when it says "Throw!"), so I figured I'd make a video on the option and all readouts, especially because there was nothing of the sort on UA-cam. For the sake of audio clarity, I've muted the parts of the video where I do menuing in-game to choose what message to send. Thanks to DDB of the Stars for being player 2.
0:15 Thanks!
0:17 Here we go!
0:19 Nice work.
0:21 I'm done for...
0:24 Sorry!
0:26 No worries!
0:28 Nice!
0:30 How?!
0:32 Gotcha.
0:34 So tough!
0:36 OOPS!
0:38 WAHOO!
0:40 Oh no...
0:42 We've got this.
0:44 Teamwork!
0:46 Follow me.
0:49 HELP!
0:51 Run for it!
0:53 Juuuuump!
0:55 Hop on!
0:57 Throw!

[@DE23]

If there are only a limited amount of preset messages you can use, why are they spoken via text to speech and not just given pre recorded readings?

[@srb2Espyo]

You can only select up to 9 at a time. I guess they used text-to-speech since it's funnier.

[@sopranogame]

My guess is that it's to make localization easier. The same messages have to be translated into several different languages, so it's easier to use a text-to-speech engine rather than recording people saying the messages in multiple languages, when this is the only use of spoken text in the game.