DOTS was an important addition in the panorama of the scheduled processes fo Domino.
True, it was cumbersome to have to install the Social Component in order to have DOTS task but overall it was a "breath of decent fresh air". Considered the power of update sites, config docs and OSGi plugins, AMgr had definitively become an inferior option.
We developed a few key solutions for our customers and now the support for DOTS has been literally removed from Domino 10. Considered that you decided to stop investing in XPages but you kept it I would have expected you did the same with DOTS.
How I wish it were even slightly improved upon:
* DOTS as core task (no separate installation)
* 1 OSGi environment, not 2 (that is XPages and DOTS managed separately)
* See IDEAAD-I-88 for other useful ideas
It's truly disheartening to see DOTS gone after all the efforts that we put into building solutions for it.
At the moment we are strongly discouraging our customers from ever upgrading to V10 because we don't have alternative solution but to stick with Domino 9.