If it wasn't for quarantine, I would not be responding to this at this hour, but these are the times we live in. Let me address as many points as I can in your take here...
Our direction is building the team behind Goff and McVay. That is clear. McVay has let go of Wade and Bones and brought in his own hires. He wants more of a say in every facet of the game and will no longer be viewed as an offensive mind, but a top Head Coach the likes of Payton, Reid, and Belicheck. Goff is going into year 5 and we just cut the previous face of the franchise. It's his team "on the field" now as much as it is McVay's off the field.
Our secondary is the strength of our defense IMO. Being able to cover down the field gives pass rushers more time to get pressure. That is how you get a good pass rush or force bad decisions. Not to mention, Donald requires triple teams or else he will get to your QB to run outside the hash marks. Hopefully Floyd and OKO can make plays from there. Yet to be seen.
Gurley was a tough pill to swallow because it required admitting we were wrong SO QUICKLY. Possibly quicker than any other player in history besides Antonio Brown, but that was for non-physical reasons. McVay was tasked with the tough job of realizing Gurley had lost a step, still force feeding him sometimes to spite the rest of the team, and then forced to answer questions as to why he didn't feed him without flat out saying this guys knee is done. He handled it very well actually continuing to put the blame on himself, but in reality, he saw Gurley didn't have the burst he used to. Cutting Gurley hurts this season for sure, but long term it was the right move for the franchise.
The FA deals made this offseason (Whit, Blythe, Robinson, Floyd, Brockers) all allow us to get out of the deal relatively cap free after 1 year if you look at the details (Floyd not released yet, but a 2 year deal). We are building around Goff, Kupp, Ramsey, Donald, Higbee and JJIII. We could be adding more names to that list after this season such as Henderson, Oko, Kiser, Evans, and draft picks. The long term trajectory is in place and it starts with Goff and Donald. Two great pieces to build on both sides of the ball.
This season is a "pivot". Decisions were made to win in a 3 year window and in that time we went to the playoffs twice, Superbowl once, and missed the playoffs by a Zuerlin FG against Seattle on TNF if you want to narrow it down to one play. We made decisions in FA/Draft/Trades that were to win now while Goff/Gurley were cheap. Then we paid them. One was a bad decision and one is TBD. But we are now forced to pivot our direction to a longer term approach and I think we are doing that nicely.
You could be right. This could be where it falls apart after a 3 year run. I personally do not see that happening and think it is premature to say it at this point in time. Goff needs to take a step, we need to draft well, some young guys need to take a step (Kiser, Oko, JJIII, Evans, Henderson, and Edwards to name a few). Don't get discouraged right now, McVay is about to show us his true genius this year