[Coal]

No, the aliens only traded the holo tech, not the cloak. The Klingons got the cloak from the Romulans in Kirks time, in the alliance they briefly had. I think the Enterprise writers would have remembered that.

As for the holo, maybe the tech was too advanced for the Federation or Klingons to put onto their ships until 250 years later (TNG time). Most of the planets, ships and stations seen in TOS were outPosts or small colonies, scout vessels and warships. At that time, the Federation and Klingons could have thought the holo tech great, but just did't have the skill, tech level, money or desire to fit it onto all their warships, colonies and stations. Remember, the first holodeck seen was on the Enterprise-D, which was a BIG exploration vessel, with lots of families on board. On that kind of ship, the holodecks would be very usefull for stress relief and crew and passenger morale, but on a warship of TOS time, it would just take up space better used for provisions or weapons.

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This is it. That moment they told us about in high school, where one day, algebra would save our lives.

'Evacuate? In our moment of triumph?'
Grand Moff Tarkin, just before the Death Star blew.

We are Dyslexia of Borg, futility is resistant, your *** will be laminated.