The L2500 is nothing like a Stingray, unfortunately.
The Lakland 55-76 is probably the closest thing out there, but they're so hard to find!
As for the 'deal' you mentioned above it was very obviously designed to fail, just so that they could say "we tried and see? no demand". Maybe you have >$2000 ready to spend on a 'toy' (by that I mean it's something that is not exactly a necessity) without notice, many others won't. I was one of the ones who got excited at the prospect, but I was not planning on buying a new bass at the drop of a hat. I think it was 4 weeks that the 'deal' was open, and it could only be black, no choices on fingerboard either etc etc. I'm sorry, but no, $2000 is not loose change to me, so...
A Lakland 55-02 was what I used instead, which again is not like a Stingray but closest I could find (I had also a G&L L2500 and a USA EBMM SUB 5-string, both of which were sold and kept the Lakland). No biggie, if EBMM don't want my money that's ok, plenty others will. Right now I'd probably go to Maruszczyk or Sandberg because they would build a bass to my specs for around the same price that a SR5 would cost me. I have no issue with any company producing or not whatever they want to, they don't owe me an explanation. But what EBMM did was just weird, almost the kind of trick you'd expect from a politician

But whatever, if it makes SB happy. It's his company to do as he pleases, just don't give me BS stories