You've couched it many times just today alone with statements like "tried to interfere" and "the influence, if any, is unclear," which are not that far removed from White House talking points.
They didn't try to interfere, they DID interfere, and the influence of that interference has been plainly clear for some time now.
Now can you answer the rest of what I asked:
They did interfere, however, to what extent their influence affected the outcome is unclear. That is reported, documented fact. Not sure how you can dispute this?
As to your question, those sanctions are apparently too weak if Russia continues to hack other nations and we're still very concerned about our future elections. Accordingly, if they're not solving the problem, why not negotiate these to save thousands of lives in Syria.
While I would be wary of this outcome, if the above doesn't work, you can always reinstate these sanctions and make them more stringent.
This seems fairly reasonable to me.