Yup. So you mean when the wiper is set all the way to the "start" and there's very little resistance between that end and the wiper there could possibly be quite allot of current?
It depends on what resistance the wiper is connected to but yes.
The power needs to be dissipated evenly across the track - if the wiper is in the centre each half needs to be limited to 100mW
Suppose you connect pot across a 10V supply the wiper to ground via a 1k resistor and set the wiper so that there is 1k between the +10V rail and the wiper. Now there's 2k across 10V which gives 5mA of current - this is rather more than that bit of track can manage (remember 447uA is the highest current before the track is dissipating too much power) and could conceivably damage it.
As I said above I don't think 1M is a good value for this pot. Generally if you are using a pot as a voltage divider the resistance connected to the wiper needs to be higher than the track resistance so as not to load te divider too much and make the response non-linear.
Looking at various VCO circuits and the datasheet the control current (and remember it is a control
current, not voltage) needs to be up to 1mA or so which, as we've seen is technically more than your 1M pot can safely pass.
Also with effectively 27k to ground you'll screw the relationship between wiper position and control voltage.
Consider a 1M pot with one end of the track at 0V and the other at some positive voltage, let's cal lit V
cc and the wiper connected to ground via a 27k resistor.
With the wiper at the V
cc end the output voltage will be 100% of that. Great.
But move the pot round 5% - now the resistance to V
cc is 50k and resistance to ground is 950k in parallel with 27K or 26.25k. That means the output voltage will now be 34% of V
cc . You've moved the pot through 5% of its travel but the control voltage has gone through 67% of its range instead of the intended 5%.
I think you need a lower value pot.