One of the big changes in GBVSR is that the throw tech window is now massive, making them very, very bad as an offensive mix up tool.
This changes the basic offensive RPS which is something usually taken for granted in fighting games. Frame traps beat mashing, blocking beats frame traps, and throw beats blocking.
However, throw was made faster - so much faster that it's now faster than jabs, and throwing people out of startup removes the massive tech window entirely. Throw is now a defensive option, which is something that may be familiar to people coming from games like guilty gear that have fast throws.
Also worth noting is that throws still have hard knockdowns while EX moves don't, so punishing with a throw vs punishing with jab into special could open up interesting decision making options.
However, how does offense work without throws? A lot of people question this.
There are more high/low options than there were before, and they are faster. However, it's unclear how strong these options are currently. The speed, safety, and reward of these mixup tools can be adjusted.
I think the big issue is that the throw button is still there, so people fall into the habit of pressing it. Repurposing a nearly standard fighting game feature is weird because it goes against instincts. There's a lot to re-learn if this is how the game is going to be.