My (extremely amateur) opinion is that it depends on two factors:
First, if you ride fast enough (or have real ambitions to ride fast enough) to make the suspension critical to the predictable handling of the motorcycle. The faster you go, the harder the suspension has to work to stay pliable and responsive, whether it's absorbing bumps or keeping the bike stable under heavy braking etc.
Second, if your body weight is outside the effective range of the stock springs and damping. I'm a big guy (read: fatass), and at close to 300 lbs, any stock setup is overwhelmed, with preload maxed out and dampers getting rigid. Springs and damping can be changed, but the cheaper units sometimes don't allow for fine tuning, and so having Ohlins or equivalent allows for a rebuild appropriate for your weight (this also applies to small riders who need preload basically off).
The only note of caution is that not all Ohlins is created equal. Like OEM tires, stuff installed at the factory may not be the same quality as the label would indicate, at least compared to off the shelf items. Just because it's gold and has the logo, doesn't mean you're getting the latest TTX shock and gas charged forks. My old 2007 ZX-10R came stock with a supposedly Ohlins steering damper, but the lack of actual damping, even when maxed out, suggested they'd paid for the logo, not the parts.
(Personal note of interest likely only to me: When I bought my 2018 Tuono last year, I had the choice between the RR (Sachs) and the Factory (Ohlins). Because of my weight, I knew I was going to have to respring and likely revalve both. But when I did the math on the premium for the Factory (with suspension and a solo seat being the only differences) plus suspension work vs the RR and new suspension bits, it was basically a wash. Add the fact that the K-Tech stuff I would get was definitely better quality than the OEM Ohlins stuff, and I went with the RR. If I had been a year later when they put the electronic suspenders on the Factory, I probably would have gone that way and rebuilt, as you can't get the electronic bits done later without major work.)