The fabricator templates for tops well before the range is pushed into place. The only way to lessen the gap
would have been to allow a bit less room between cabinets. If that is your
photo, I see the issue, but it appears less than an inch. There has to be a small gap to even slide it in
place. Your only recourse would be to move the shorter side cabinetry and redo the solid surface on that one side. Below is snug......so snug we held our collective breath.( taken before floor was re-finished)

I could not be a much smaller gap as the stove needs to be able to move in and out

The gap doesn't appear to be an inch. It looks like the right size to allow for moving the stove in and out and any settling that may occur. Hang in there - remodeling can be hectic, but the payoff is well worth it :)

Yes, it is OK.