ScaleGrid interview questions

Long- Took about a month, Initial phone call Interview with member from the owning PE Firm Interview with a Consultant for Tech firm Interview with the CEO (who is also a CEO for another Tech company with the PE owners) The recruiter though- I had gone through the whole process, it was a good process. However, the recruiter had said, "LEt us know your availability on the day after your final interview" So I did, the interviews went well, the Scalegrid team was great (the CEO needs a direction as to what company to run, and not be double hatting) The recruiter had said that the meeting with them was about the offer. I had joined the meeting, waited 5, 10 minutes. Then I emailed the Recruiter. They then responded via text message, that "they had sent an offer to someone else" To get told via text, during the meeting that I was informed was the offer period, is unbelievably unproffesional.