Key value maxlength

Problem/Motivation

I am using Lockr along with the key module and I'm trying to store an ssl certificate, however the 'Key value' field is limited to 4092 characters (see https://www.drupal.org/project/key/issues/3116038 → ). I was messing around with the key_asymmetric → module for this, which changes the 'Key value' field to a textarea, however the maxlength still exists because of the code in /src/Plugin/KeyInput/TextFieldKeyInput.php:

$form['key_value'] = [
  '#type' => 'textfield',
  '#title' => $this->t('Key value'),
  '#required' => $key->getKeyProvider()->getPluginDefinition()['key_value']['required'],
  '#maxlength' => 4096,
  '#default_value' => $key_value_data['current'],
  // Tell the browser not to autocomplete this field.
  '#attributes' => ['autocomplete' => 'off'],
];

The certificate I'm using has about 5500 characters. I was wondering if there was a reason for this limit? Lockr doesn't have a maxlength limit on the values it stores, so I was wondering why this limit exists. Just curious, does there even need to be a limit at all here?

Thanks!