We're not discussing fan belief, dude. It's just a statement of the FO's plan. They believe in Allen and have their plan in place. They've prioritized offensive players in FA and will get the BPA in the draft.
If they didn't believe in Allen, I'm sure their plan would change a little. If Allen doesn't show improvement this year or next, they'll look at drafting a new QB.
As long as they stick to the overall building plan (prioritize needs in FA and draft BPA; retain talent at the right value; maintain their organization's core values), then they should be alright. They'll be golden if they get a solid QB.
Allen doesn't have the stats yet, but he looks the part. We'll see how he pans out this season as the 3rd year of the building plan comes to a close.