Because referring to the original question the company has set ACCEL ALT at 400'. Therefore there is a chance that you may encounter windshear while SRS is not available.
You are right in saying that the procedure does not mention climb or selecting speed, but then the procedure is assuming that either SRS will be active with FD bars or the take-off will be sans FD or any form of guidance. But then in this situation we do have FD bars but no SRS.
Assume at 380' with SRS active we get Windshear, FD bars on. What happens when we cross 400' i.e. ACCEL ALT. Will the aircraft switch to CLB mode? If it does then villas is suggesting selecting speed to maintain V2+10, and then the FD will give you orders to climb at current speed rather than trying to accelerate. It makes sense although we have to ask ourselves whether OP CLB mode will be able to handle the windshear or not in the same way SRS can, i.e. is it tuned (programmed) to do the job?