Collecting value doesn't really get you anywhere if nobody is compensating you for it. Unless someone is going to either pay for it for you or give you $200/mo post-tax dollars, it's costing you money.
Furthermore, the advice was given to upgrade to a $200 subscription from the $20 subscription. The difference in value that might translate into income between the $20 option and the $200 option is very unclear.
No doubt that you should ask you employer for the tools you want/need to do your job but plenty of us are using this kind of thing casually and the response to "Any way I can force it to use [Opus] exclusively?" is "Spend $200, it's worth it." isn't really helpful, especially in the context where the poster was clearly looking to try it out to see if it was worth it.
IMO it's pretty good for design, but with code it gets in its head a bit too much and overthinks and overcomplicates solutions.