Fearless Leader
Donor
True, it was placating the Albanians, but the Balkan League never seriously believed the Albanians will support them. Serbia and Montenegro gave them some funds and weapons while they were rebelling against the Ottoman Empire but this arrangement was understood to be temporary by all sides. Basically, the Albanians were never going to be allies against the Ottoman Empire, and the ethnic Bulgarian/Greek/Serb citizens would remain reliably supportive. Which is why IMO the Balkan League governments did not feel like they were running out of time, and military-centered reforms are the only kind of reforms that could make them start feeling that way.
I think you're underestimating just how disastrous a fully formed and developed Albanian nationalism would be to the Serbians, Greeks, and Bulgarians. Albanian nationalists were already HEAVILY supported by Austria-Hungary as were efforts to keep Macedonia Ottoman. With Albanian nationalism more widely accepted the Serbs can practically kiss their dreams of taking Shkoder (Scutari) and most of Kosovo goodbye. Same with Greece and "Northern Epirus" (no way that they'll be able to claim the 150k Orthodox Albanians are actually Greeks confused about what language to speak in TTL) As well as Bulgaria with "Western Macedonia" AKA Albanian populated lands allocated to them in the Treaty of San Stefano in 1878.
Finally, I think the revolutionary nature of the 1912 Albanian reforms aren't being understood. This marks the first time that the Ottomans are basically conceding to demands for national (not religious) autonomy within the Empire. There is literally nothing stopping them from doing the same thing to Macedonia or to the Arabs for that matter. Local support isn't really the issue here, it's international support. If the Ottomans are doing everything the Great Powers (Britain, France, Austria in this case) want them to, why would they stand by and allow the Russian backed Balkan league to mess everything up?