Like we've stressed before, the wallet upgrade is very important. If you want to look at it from marketing/price perspective, consider that once BTC2 is in the spot light next, would you rather have it seen as high quality safe coin with all the fundamentals looking good, or as just another temporary pump? Those with not that many coins just waiting for a pump might not care about the long-term use cases and value of BTC2, but we do.
We have the funds for exchange listings, but any new listings will also require volume so even if we got listed today, does not mean that we would be immediately eligible for a top 200 ranking. Not that a ranking is even the only way to gain spotlight again.
Check out how much Ethereum's POS update has been delayed as an example. Delays in crypto development are common. ETA is not a deadline, it was our best guess at the time that we made it. We would refrain from making such guesses if it wasn't for the community asking for them.