In the olden days, political seasons and Christmas season had no variance as both seasons were seen as festivities and exchange of pleasantries.
When you say political season, I don't think these guys who run the show have a season of doing their stuff. To me politics has no season and the politicians do their thing every day as long as they are on the receiving end which is good business to them.
You are absolutely right and that is literally considering politics of now which politicians are more interested in rulership prioritizing selfish interest such as public funds embezzlement, complimenting the laws and still breaks the laws including acting inhuman by watching their citizens dieing over essential needs like hunger and meds which they government can actually create amenities for the provisions.
But relating to the OPs approach, yeah I understand that context clearly. He actually meant political seasons instead of electoral season such as the US is at her United States election now, so back in those eras, the seasons for elections used to seem a ceremonial and not the do or die affairs without the cause or havoc, crisis that takes lives at today's politics due to political interests.
So back then, it was more like a social activities which either looser or winner do embraces each other and the day or inaugurating the winning parties usually seem hopeful for a new era where the people would experience a more better life as we keep to have new phase of governments after governments.
Unlike now that politics has divided us all with factions and sentiments and criticisms everywhere.