I remember early Jap cars
For example, my dad's Datsun Sunny that spent more time in the garage than on the road.
And that's the risk with Chinese bikes. If 95% of the parts work, that's small comfort if the 5% failure is in a critical part and the dealer just shrugs and says "Eh, that'll be 3 months on the slow boat, if you're lucky."
Lexmoto are dealing with this issue, granted. They saw the gap in the market and started as a parts importer for the many brands of Chinese tat that other people were selling. Now they sell the best of that tat under their own brand and carry a big range of stock for it. But go off piste and you're on your own - I'm speaking from experience here, I had a downpipe rot out on my Lifan 250 and ended up buying a replacement direct from Hong Kong, with the consequent delays and customer / Parcel Farce raping.
But that's Lexmoto and 125s. WK Bikes and 650s, I dunno. They have plenty of dealers, but not a mention of parts on their website. Maybe you'd get lucky, but I'd be sure to check out the parts department before even looking at the bikes.
The last thing Suzuki needs is another bolt-on variant of one of their aging model range. They actually look to have dropped the naked and half faired GSF650 Bandits for the moment and are trying to fill the gap with bolt-on versions of the V-Strom and SVF (Gladius as was) plus the GSX650F Bandit-in-a-frock. What they need is something that's compelling newer and better than the alternatives, not just a range of heavily discounted also-rans.