Aunju, I added an update to tonight’s deploy that means Embedded Tweets should now only require one Follow Button resource be loaded on any given page, regardless of the number of Embedded Tweets used. We’ll update again in the future to also have Tweet Embeds reference our long-cache versions of the Follow Button, but for now, this should make for a significant impact in performance from the number of HTTP requests coming from pages with multiple embeds.
Again, thanks for bringing this to our attention.